The Pellaeon-class was considered one of the most powerful warships in the galaxy and was noted as having unmatched weapon systems and starfighter components. With its sleek outline, it presented less of a target to potential enemies, while at the same time optimizing its shield protection.[2]

The forward-sloping superstructure of the Pellaeon-class also gave the main gun batteries excellent vantage points, more so than on the Star Destroyers of the previous centuries.[2]

The class had a ventral hangar where starfighters and shuttles could land and embark from.[2]Predator-class fighters would be stored in racks in narrow passages throughout the hangar area. Traffic control centers were located on either side of the main hangar opening, overlooking the area.[5]

Its sloping profile allowed the Pellaeon-class to be shorter than the Imperial-class while at the same time be able to carry a decent amount of landing craft and small starships.[3]

The Pellaeon-class had at least one conference room with a holographic projector table in the center.[8] Its bridge was styled similar to earlier warship classes such as the Venator-class, with crew pits encircled by a command deck where ship commanders could view the ship's surroundings out of panorama windows.[9]

Later in the same year, Darth Stryfe used a Pellaeon-class vessel to search for Jedi refugees on Ossus. Upon feeling a continued presence after his troops returned empty-handed, he ordered the vessel to destroy the ruins of the Jedi Academy.[7]

In an interview for Star Wars Insider 89, designer and illustrator Sean Cooke described the design of the Pellaeon-class as a new way to look at Super Star Destroyers. The original idea entailed not making the vessel incredibly long, like the Executor, but incredibly tall and with a cathedral-like aspect to the design. The refined design harked back to the original Star Destroyers, but with a "front plow" addition based on the Khetanna, Jabba the Hutt's sail barge.